CN1595120A - Process for making test paper used for acceptance test of transport oil container after washing - Google Patents
Process for making test paper used for acceptance test of transport oil container after washing Download PDFInfo
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- CN1595120A CN1595120A CN 200410040166 CN200410040166A CN1595120A CN 1595120 A CN1595120 A CN 1595120A CN 200410040166 CN200410040166 CN 200410040166 CN 200410040166 A CN200410040166 A CN 200410040166A CN 1595120 A CN1595120 A CN 1595120A
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- cut
- micropore
- filter paper
- test paper
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Abstract
It is an acceptance reagent paper process for transmission oil container after wash. As for the shortcomings of current reagent paper, this invention provides a simple and convenient acceptance process. The process is the following: to cut the micropore quantitative filter paper into strips; to put it into the alcohol solvent with methyl red, ethyl red, thymol blue; to take out the dipped filter paper and wash it with stilled water with PH value 5.5; to lay it in electric oven; finally to cut it into certain specification and inject and pack it.
Description
One, technical field
The present invention relates to chemical test paper, especially a kind of examination test paper preparation technology who scrubs back transportation oil container.
Two, background technology
Various oil plants are before shipment, need be to the container of means of transport, as transport oil tank, oil tanker is scrubbed, to guarantee that oil product can be because of oil truck, the unclean pollutant of bringing into of ship container, and influence oil quality, but the present technology of scrubbing generally is that soda acid washes oil truck and cargo tank inwall repeatedly, with thorough removing Residual oil, grease, iron rust and other chemical substance, and then falls remaining acid ﹠ alkali liquid with a large amount of flushing with clean water.Whether qualified to scrubbing back transportation oil storage container, at present according to relevant regulations among the industry standard SH0164-92 of Sinopec " petroleum products packing, transportation and acceptance of delivery rule ", adopt " four none examinations "." four do not have " promptly do not have grease, no fiber, no iron rust, anhydrous assorted; " one examination " be visual or wipe examination with calico, do not present scale, anvil cinder, and black, and the Acidity of Aikalinity that cleans raffinate then be there is no unified standard and method of testing.Also there is when detection to use H
+Extensive test paper, but because the PH test paper is a graded, and each gradient aberration is not obvious, and especially invalid substantially to diluted acid, diluted alkaline, can not detect, this is because of diluted acid, H in the diluted alkaline
+Concentration is very low, be reflected to again on the test paper just lower, so variable color has hysteresis phenomenon relatively.More can not measure the rust stain degree of oil storage container.
Three, summary of the invention
It is simple to the purpose of this invention is to provide a kind of prescription, easy to make, and energy variable color sensitivity detects quick, accurate good reproducibility, can measure the test paper preparation technology of Acidity of Aikalinity, rust stain degree.
The purpose of this invention is to provide by two or more different acid base indicators and mix, color change interval requires to have " dynamic isomer " of different colours, at H between 5.0-9.0
+When concentration changed, its balance changed, and caused the test paper preparation technology of change color.
The objective of the invention is to realize that by following content its preparation technology may further comprise the steps:
A, get the raw materials ready: select that thickness is 0.10-0.15mm, compactness extent, fiber distributes and gas penetration potential wants the micropore quantitative filter paper of uniformity to be cut into strip;
The preparation of b, indicator solution: methyl red, ethyl red, Bromothymol blue mixed by weight 1: 1: 6, and mixing back weight 1.6 grams, to be dissolved in 1000ml concentration be in 30% the alcoholic solution, leave standstill 30 minutes after, filter with 4.5-9.0 micron glass sand hourglass.
C, immersion: the micropore quantitative filter paper that will be cut into strip is put into the container that indicator solution is arranged that filters through b, step, soaks 5-10 minute;
D, acidifying: take out soaked micropore quantitative filter paper, the distilled water flushing of usefulness PH=5.5 1-2 time;
E, oven dry: put into the electric dry oven oven dry again, 40 ℃-50 ℃ of temperature, time 4-6 minute;
F, back arrangement: be cut into certain specification, check, packing.
The present invention adopts methyl red, ethyl red, Bromothymol blue preparation mixed indicator, and their intersection look is a reddish yellow, according to inferring that in theory its color change interval should be in 5.0-9.0.
The present invention, soaked micropore quantitative filter paper must acidifying, otherwise because the reversibility of molecular motion, the color that is reflected in the test process is difficult for going up paper, and dissolves in the solution to be measured.Selection for washing fluid is also very important, should select less ionic distilled water for use, be made into the solution of certain pH value, its pH value generally should be between between color change interval one appropriate value, the background color of test paper is the color under the corresponding pH value like this, can both reflect acid look and alkaline look.For some specific acid test paper or alkaline test paper, the pH value of their washing fluid just not necessarily like this, charta exploratoria rubra for example, it is a kind of alkaline test paper, meets alkali and becomes blue, the pH value of its washing fluid be acid, so the background color of test paper is a redness.
The present invention makes test paper, and its background color is a reddish yellow, and when PH=5.0, test paper becomes redness, and pH value is basic nondiscolouring when 5.5-7.8, and pH value becomes very shallow blue-green when 7.8-8.5, and when PH=9, test paper becomes blueness, and effect is all comparatively obvious.
Use the present invention is that the test paper and the potential of hydrogen in the color board of the recessed middle liquid of long-pending oil of immersion oil storage container compares; The test paper of the inwall of wiping oil storage container and the rust stain degree in the color board are relatively.
The present invention has that prescription is simple, preparation technology convenient, and the institute's test paper that obtains test is easy to use, and is quick, reliably, and characteristics such as practicality.
Four, embodiment
Its preparation technology embodiment is as follows:
Selecting thickness is 0.1mm, compactness extent, the wood pulp micropore quantitative filter paper that fiber distributes and gas penetration potential is all easily consistent, be placed on the paper cutter, be cut into the wide strip of 50mm, with methyl red 0.2 gram, ethyl red 0.2 gram, after Bromothymol blue 1.2 grams mix, be dissolved in 1000ml concentration and be in 30% the alcoholic solution, after leaving standstill 30 minutes, filter with 5 microns glass sand hourglasses, will be cut into the wide strip micropore quantitative filter paper of 50mm then, put into solution after the above-mentioned filtration, soaked 6 minutes, take out soaked micropore quantitative filter paper, with containing a small amount of rare HCl, the distilled water flushing of PH=5.5 1 time, putting into electric dry oven again does, 45 ℃ of temperature, are cut into the long test paper of 60mm at paper cutter at last at 5 minutes time, check, packing.
Claims (1)
1. scrub the examination test paper preparation technology that oil storage container is transported in the back for one kind, it is characterized in that preparation technology comprises following steps:
A, get the raw materials ready: select that thickness is 0.10-0.15mm, compactness extent, fiber distributes and gas penetration potential wants the micropore quantitative filter paper of uniformity to be cut into strip;
The preparation of b, indicator solution: methyl red, ethyl red, Bromothymol blue mixed by weight 1: 1: 6, and mixing back weight 1.6 grams, to be dissolved in 1000ml concentration be in 30% the alcoholic solution, leave standstill 30 minutes after, filter with 4.5-9.0 micron glass sand hourglass.
C, immersion: the micropore quantitative filter paper that will be cut into strip is put into the container that indicator solution is arranged that filters through b, step, soaks 5-10 minute;
D, acidifying: take out soaked micropore quantitative filter paper, the distilled water flushing of usefulness PH=5.5 1-2 time;
E, oven dry: put into the electric dry oven oven dry again, 40 ℃-50 ℃ of temperature, time 4-6 minute;
F, back arrangement: be cut into certain specification, check, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040166 CN1595120A (en) | 2004-07-08 | 2004-07-08 | Process for making test paper used for acceptance test of transport oil container after washing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040166 CN1595120A (en) | 2004-07-08 | 2004-07-08 | Process for making test paper used for acceptance test of transport oil container after washing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1595120A true CN1595120A (en) | 2005-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410040166 Pending CN1595120A (en) | 2004-07-08 | 2004-07-08 | Process for making test paper used for acceptance test of transport oil container after washing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1595120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353315A (en) * | 2016-08-31 | 2017-01-25 | 西安法士特汽车传动有限公司 | Method for judging whether cleaned components are dry or not |
| CN109358051A (en) * | 2018-12-18 | 2019-02-19 | 沈阳理工大学 | Survey the chain alkyl trimethyl ammonium enhanced sensitivity mix reagent test paper and preparation method of ammonia in air |
-
2004
- 2004-07-08 CN CN 200410040166 patent/CN1595120A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353315A (en) * | 2016-08-31 | 2017-01-25 | 西安法士特汽车传动有限公司 | Method for judging whether cleaned components are dry or not |
| CN109358051A (en) * | 2018-12-18 | 2019-02-19 | 沈阳理工大学 | Survey the chain alkyl trimethyl ammonium enhanced sensitivity mix reagent test paper and preparation method of ammonia in air |
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